Ventilating means for railway and other vehicles.



A. A. MEAD.

VENTILATING MEANS EOE RAILWAY AND OTHER VEHICLES.

APPLICATION FILED DBO. 30, 1912.

Patented May 26, 1914.

2 S BETE-SHEET 1.

A. A. MEAD.

VENTILATING MEANS FOR RAILWAY AND OTHER VEHICLES.

APPLIUATION FILED nso. so, 1912.

1,098,329. Patented May 26, 1914.

2 SHEETS-SHEET 2.

moved to open the slots 6, and to simultaneously turn the strips 8 on their pivots, to open the louver as hereinafter described, should cinders or other solid particles pass through the lo-uver, they willbe deflected on to solidl parts 5EL and Ga between the slots 5 and 6 in the slide 4 and plate 7, and being arrested thereby will fall to the bottom of lthe ventilator. The frame or casing of the ventilator may be provided with means such as the outlet 18, shown in chain lines in Fig. 2, whereby the said solid particles after falling to the bottom of the ventilator may be delivered to the exterior of the carriage or vehicle being ventilated.

A plate 19 is shown attached to the rear of the slide 4 and extending across one of the vertical slots 5 therein (see Fig. 5). To this plate 19 is fixed a forwardly extending stud or pin 20 having at its outer end a knob or handle 21, the said pin 20 passing through a horizontal slot 22 formed in the stationary plate7. Then the ventilator is closed, that is when the slots 6 in the plate 7 are closed, and the louver strips 8 are in alinement in the closed position, asv shown in Fig. 3, the pin 20 is in the center, of the slot 22, thus by moving the knob 21 in either a right hand or a left hand direction the slots 6 are opened by the slots 5 in the slide 4 registering therewith. In order. that the movements of the slide 4 shall simultaneously impart swiveling movement to the strips 8 the plate 19 is provided for example with an upwardly projecting arm 23 having at its upper end a forked lateral extension 24. Engaging the fork of the extension 24 is a pin 25 on one of the lugs 15 as seen clearly in lFigs. 2, 4 and 5, so that when the slide 4 is moved in either direction it turns the louver strip 8 which carries the pin 25 through the medium of the arm 23, and as all the strips 8 are operatively connected by the horizontal bar 17 as. aforesaid, they are caused to simultaneously swivel on their pivots. Another .inode of turning the strips 8 is illustrated in Fig. 8 and consists in providing the plate 19 with a downwardly projecting arm` 41 having a forked lateral extension 42 for engaging, say a pin t-l. carried by a lug 44 on the shoe 9 of one of the louvcrs. Or as shown in Fig. 9, said plate 19 may have both upwardly and downwardly extending arms 23 and 4l, respectively, for engaging corresponding lugs 15 and 14 on the cap v.l2 and shoe 9 in the manner aforesaid.

Instead of providing the arm or arms on the plate 19, the connection between the slide 4 and the louvcr strips 8, as shown in Fig. 10, may for instance be made by a pin .45, say on the rear of the slide 4 engaging a recess 46 or the like in the horizontal bar 17 so that upon 'moving the slide 4 the bar 17 would be moved in the same direction and, throughthe pins 16 thereon engaging the lugs 15, effect the simultaneous partial rotation of the said strips.

To enable the ventilator to be operated from outside the carriage a forwardly projecting arm 26 may be attached to a vertical pin 27 in the Ahorizontal bar 17. The said pin passes upward through a slot 28 in the upper member 1 of the frame, a knob or handle which is accessible from the exterior of the carriage being fitted to the outer end of the said arm 26, by means of which the bar can be moved `in either a right hand or left hand direction, and through the connecthe slide 4, and at the same time the swiveling of the strips 8, as will be well understood.

To enable the device to be operated with ease, and to avoid excessive wear and tear and difiiculties of operation which arise when'cinders and similar bodies clog the working parts of the ventilator, the slide 4 may be supported on balls 29 (Fig. 2), and the horizontal bar 17 be provided with a ball 30, see Fig. 1, or roller or similar antifriction bearing, at each end of the said bar, and intermediately also if desired, which balls or the like bear against the frame member 1 To indicate when the ventilator is closed, or to hold the same in the closed position, a 'spring ball-catch 47 of the well-known type, or any other snap or suitable catch device may, as shown in Figs. 1 and 2, be adapted to co-act between the slide' 4 and the stationary plate 7, and so arranged as to operate or snap when the slide 4 is in its mid-position, as illustrated in Fig. 1, in

are closed. Obviously any other suitable engaging device or indicator may be enrployed for this purpose.

In the modification seen in Figs. 6 and 7 the top member 1, the bottom member 2, the side members 31, and the iixed plate 7 of the hit-and-miss grating, are all made of sheet metal and, if desired, they may be formed of one piece of sheet metal, so that a sort of sheet-metal box or casing is provided, the open front of which is capable of being closed by the louver plates 8. These plates 8 may also be made of sheet metal and may be stiffened by pivot pins 32 which may extend from top to bottom of such louver plates 8, the said pins being, if desired, soldered tothe plates 8. It is convenient in 'cutting out or stamping the louver plates to form the same with lugs 33, 84 which are bent at right angles to the planes of respective plates so thatv the pins may pass through and be secured in, such lugs. l are conveniently extended so as to form the tions before described, effect the sliding of which position, as before stated, both the vertical slots 5 in the slide 4, and the louver The lugs 33 l forked arms 15 Which engage pins or projections on a sliding member by which the louver plates 8 are turned about their pivots simultaneously with the sliding of the plate 4 of the hit-and-miss grating. In this modiication the sliding bar 17 of the construction described with reference to Figs. 1 to 5 is dispensed with and each louver plate is turned by arespective pin or projection 35 riveted or otherwise secured to the sliding plate 4 of the hit-and-miss slide. Such pins 35 may be made by suitably bending short lengths of wire, as shown, and flattening those ends which are secured to the sliding plate 4. In order to prevent the plate 4 from bending so that it will maintain 4a close relation with the lixed plate 7, antifriction rollers 36 may be mounted upon vertical studs on the top and bottom plates 1 and 2 respectively so as to bear against the plate 4 at various points and preserve the straightness of the plate 4, and its close relation with the iXed plate 7. In order to prevent the louver plates S from rattling and displacement due to vibration, spring washers 37, orl other resilient devices, may be inserted between the top plate l and collars on the pins 32, or the lugs 33 may serve as collars for receiving the pressure of the springs 37 as shown. Similar washers may be introduced between the lugs 34 and the -bottom plate 2, or such spring washers or resilient devices may be applied at both the top and bottom of each pivot pin 32. An

advantage incidental to the use of devices such as spring washers is that the latter cause thelouver plates to turn sufficiently stiiy about their pivots so that the possibility of such plates being turned unintentionally by the vibration and jolting is removed and the ventilator remains in any position to which it has been adjusted by the handle 21, which latter moves in a plain slot as in the previous construction. TheI bottom plate 2 is slotted to allow cinders and other matter to fall through so that they cannot clog the ventilator, such bodies may fall through on to a downwardly and outwardly inclined iloor 38 b which they are delivered'to the exterior o the carriage. The vertical corner spaces of the casing may be filled in by means of bent sheet metal pieces 39 which prevent lodgment of cinders and other matter in such corners. It may be observed that in this construction the pivots 32 are situated midway between neighboring and corresponding slots 6 in the fixed plate 7 and that the number of louver plates 8 is one in excess of the slots 6. It may also be pointed out that the sliding plate 4 is formed with eight slot-s 5 four oi' which are shown in register with the four slots 6 while the other four are situated behind inperforate ,parts of the plate 7. If the handle 2l be moved to the opposite extreme position to reverse the louverplates 5 the slots 5 shown not -in register, will be brought into registration with the slot-s 5, while those shown in register will be moved toward the right hand of Fig. 6, behind imperforate parts of the plate 7. This arrangement is very suitable. for the interception of cindersor bodies which may be deflected into the casing by the louver plates 8.

The bottom plate 2 may be stiened by a bar 40 secured along the edge of such plate and such stiiicners may be employed at any places where they may be required.

1. Ventilating means for railway carriages and other vehicles, comprising a chamber, a hit and miss grating including a slide at the'rear of said chamber, a series of louvers pivotally mounted in the entrance of said chamber in front of said slide, and operative connection between said slide and said louvers whereby the movement of said slide to open or close the slots in the grating brings about simultaneously e ries of louver strips mounted in the entrance of said chamber in front of said grating, vertical pivots for said louver strips located approximately opposite the slots in said stationary member, and operative connection between saidlmovable member and said louver strips substantially for the purpose set forth. l

3. Ventilating means, comprising a chamber, a hit and miss grating including a slide at the rear of said chamber, swiveling louver strips pivotally mounted in the entrance of said chamber and adapted to close or open said entrance, a horizontal sliding bar operatively connecting said louver strips, and operative connection between said slide and said bar comprising an arm on the slide, and a lug on one of the louver .said arm, whereby the movement of said slide causes the louver strips to be simultaneously swiveled, substantially as set forth,

4. Ventilating means, comprising a chamber, a hit and miss grating including a slide at the rear of said chamber, swiveling louvers mounted in the entrance of said chamber in front-of said slide, crank arms on said louvers, and pins or projections carried by the slide and operatively engaging said crank arms, substantiallyas and for the purpose set forth. j

5. Ventilating means, comprising a cham. ber, a hit and miss grating including a iao slide at the rear of said chamber, a series of louvers mounted in the entrance of said chamber in front of said slide and adapted to open or close said entrance, operative connection between the slide and louvers, vertical pivots for saidlouvers, and elastic means on the pivots of the louver plates, substantially as and for the purpose set forth.

6. Ventilating means, comprising a chamber, a hit and miss grating including a fixed plate and a slide'at the rear of said chamber, a series of louvers mounted in the entrance of said chamber in front of said grating and adapted to open or close said ber, a hit and miss grating including a entrance, operative connection between the slide and louvers, vertical pivots for said louvers, and antifriction rollers to maintain the slide in close relation with the xed plate of the grating, substantially as set forth.

7 Ventilating means, comprising an open sided casing havin@V ports in one Wall, a slotted plate slidaby arranged in relation with said wall, a series of louver strips pivotally mounted at the open side of said casing, and adapted to open or close suoli open side, and Aoperative connection between j the slotted plate and louver strips, substantially as and for the purpose set forth.

8. Ventilating means, comprising a chammeeneeerative connection between the` slide and louvers, vertical pivots Jfor said louvers, a sliding bar connectlng said louvers together,

said bar having a forwardly extending arm accessible from outside the carriage, whereby the movement of said bar to the right or lleft hand brings about simultaneously the opening or closing of the grating and the louvers, substantially as set forth.

9. Ventilating means, comprising a chamslide at the rear 'of said chamber, a series of vlouvers pivotally mounted in the entrance `iof said chamber', operative connection be- Qtween said slide and louvers for insuring lsimultaneons operation thereof, and recepgtive means arranged beneath said chamber and adapted to discharge cinders andother ;solid particles which may strike the blank lportions of the grating and fall therefrom, :substantialy as set forth.

ALBERT ALFRED MEAD...

Witnesses:

W. MORBEY, 0. J. l/VoRTH. 

